Finding the Fourth Proportional to 9,379.20, 14,061.81 and 5,680.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,379.20 : 14,061.81 = 5,680.62 : x
2. Step 2: Convert to fraction form
   9,379.20/14,061.81 = 5,680.62/x
3. Step 3: Cross multiply
   9,379.20x = 14,061.81 × 5,680.62
4. Step 4: Simplify right side
   9,379.20x = 79,879,799.12
5. Step 5: Solve for x
   x = 79,879,799.12/9,379.20
6. Step 6: Final answer
   x = 8,516.70